Musical experiences; somehow; often escape materiality. Listeners tend to focus on the way music makes them feel; and its study is often grounded in the socio-cultural ideologies of musical genre and style. Yet; music relies on material infrastructures in how it is produced; consumed; and disseminated. This ensemble of listening-artists' investigates such musical infrastructures; tracing the complex supply chain networks that make up our modern musical experiences. Through readings; listening; and exploratory sound-art projects we will re-trace these musical-material chains; rethinking our involvements with musical production and consumption.